Transverse Cerebellar Diameter and Abdominal Circumference Ratio Versus Mid-Thigh Circumference and Femur Length Ratio in Assessment of Gestational Age in Normal and Growth Restricted Fetuses

Transverse Cerebellar Diameter and Abdominal Circumference Ratio Versus Mid-Thigh Circumference and Femur Length Ratio in Assessment of Gestational Age in Normal and Growth Restricted Fetuses

The aim of this research was to examine the accuracy of transcerebellar diameter to abdominal circumference ratio (TCD/AC) and mid-thigh circumference and femur length (MTC/FL) in estimating the gestational age of healthy and abnormally growing fetuses.

Fetal growth restriction (FGR) is poor fetal growth, typically defined by weight under the 10th percentile, due to maternal, placental, and fetal factors.

The transcerebellar diameter to abdominal circumference ratio (TCD/AC) in ultrasound aids in predicting FGR, mainly through abdominal circumference (AC), while transverse cerebellar diameter (TCD) is less often related to fetal growth issues.

Inclusion Criteria:

• Pregnant women aged 18 to 35 years old.
• 24-28 weeks of gestation
• Primigravida
• Single viable fetus
• Reliable Last Menstrual Period (LMP) or first trimester ultrasonography to confirm gestational age.

Exclusion Criteria:

• Chromosomal abnormalities.
• Any medical disease that affect fetal growth.